检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

57 篇 会议

馆藏范围

57 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

56 篇 工学
- 52 篇 动力工程及工程热...
- 45 篇 化学工程与技术
- 18 篇 力学（可授工学、理...
- 15 篇 石油与天然气工程
- 12 篇 机械工程
- 10 篇 光学工程
- 10 篇 计算机科学与技术...
- 10 篇 环境科学与工程（可...
- 9 篇 航空宇航科学与技...
- 9 篇 软件工程
- 7 篇 电子科学与技术（可...
- 5 篇 仪器科学与技术
- 4 篇 电气工程
- 3 篇 控制科学与工程
- 1 篇 材料科学与工程（可...
- 1 篇 土木工程
- 1 篇 交通运输工程
- 1 篇 船舶与海洋工程
45 篇 理学
- 33 篇 化学
- 19 篇 物理学
- 11 篇 数学
- 5 篇 大气科学
- 4 篇 统计学（可授理学、...
- 2 篇 生物学
- 1 篇 地质学
- 1 篇 系统科学
2 篇 管理学
- 2 篇 管理科学与工程(可...
1 篇 法学
- 1 篇 社会学

主题

9 篇 diesel engines
4 篇 fuels
4 篇 diesel fuels
3 篇 computational fl...
3 篇 ethanol
2 篇 combustion chamb...
2 篇 large eddy simul...
2 篇 direct injection
2 篇 gas temperature
1 篇 matlab
1 篇 nitrogen oxides
1 篇 biodiesel
1 篇 commercial vehic...
1 篇 efficiency
1 篇 mixtures
1 篇 combustion
1 篇 exhaust gas reci...
1 篇 nitric oxide
1 篇 benzene
1 篇 quartz

机构

2 篇 institute of int...
1 篇 university of hi...
1 篇 honda r and d co...
1 篇 department of me...
1 篇 research center ...
1 篇 vka rwth aachen ...
1 篇 idaj
1 篇 dept. of transpo...
1 篇 department of me...
1 篇 university erlan...
1 篇 national enginee...
1 篇 engine research ...
1 篇 villigen psi ch-...
1 篇 ford motor compa...
1 篇 lotus engineerin...
1 篇 technology suppo...
1 篇 division of flui...
1 篇 lavision gmbh an...
1 篇 technical univer...
1 篇 dept. of mechani...

作者

3 篇 leipertz alfred
3 篇 wensing michael
2 篇 mauss fabian
2 篇 shimo daisuke
2 篇 kim sang-kyu
2 篇 johansson bengt
2 篇 lee ki-hyung
2 篇 richter mattias
2 篇 andersson öivind
2 篇 herrmann kai
2 篇 aldén marcus
2 篇 nishida keiya
2 篇 moriyoshi yasuo
2 篇 spicher ulrich
1 篇 wagner uwe
1 篇 grill michael
1 篇 naitoh ken
1 篇 park sang-ki
1 篇 cheng shuqi
1 篇 nishiyama atsush...

语言

57 篇 英文

检索条件"任意字段=8th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2012"

共 57 条记录，以下是31-40 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Jet-jet interaction in diesel engine combustion

Jet-jet interaction in diesel engine combustion

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Solsjö, R. Jangi, M. Chartier, C. Andersson, Ö. Bai, X.S. Division of Fluid Mechanics Lund University 221 00 Lund Sweden Division of Combustion Engines Lund University 221 00 Lund Sweden

this paper presents numerical and experimental investigation of flame lift-off and stabilization mechanisms in heavy-duty diesel engines. the injection strategy, employing different nozzle configurations, allows quantification of the impact of varying inter-jet angle spacing in the presence of swirl. For this purpose, two different inter-jet angles are chosen in this study, 45°?and 135°. Large-eddy simulations are performed, utilizing a detailed kinetic mechanism for n-heptane to resolve the turbulent fuel and air mixing and to capture the important species surrounding the ignition and flame-fronts to describe the flame stabilization process. Measurements are carried out for OH chemiluminescence to identify the flame lift-off position in an optical accessible engine. With decreasing inter-jet angle, it is shown that the impact of transportation of hot products from adjacent jets becomes more prominent. Hot reservoirs surrounding the lift-off length increase the local ambient temperature and augment the auto-ignition process by mixing of the cold injected fuel and hot air. When the inter-jet angle decreases, this effect becomes less important. Copyright © 2012 by the Japan Society of Mechanical engineers.

关键词： Large eddy simulation

来源：评论

学校读者我要写书评

暂无评论

Model-based control for ignition timing of premixed compression ignition combustion in a diesel engine

Model-based control for ignition timing of premixed compress...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Kakuda, Yoshie Kim, Sang-Kyu Shimo, Daisuke Maruyama, Keiji Hashimoto, Takayoshi Hayashibara, Hiroshi Tetsuno, Masayuki Mazda Corporation 3-1 Shinchi Fuchu-Cho Aki-Gun Hiroshima 730-8670 Japan

As compared with the conventional diesel combustion, Premixed Compression Ignition (PCI) combustion has an opportunity to achieve low fuel consumption and clean exhaust gas simultaneously. However, to improve the stability of fuel consumption, exhaust gas, and combustion noise, it is necessary to control ignition timing appropriately in PCI combustion. We therefore conducted a study to develop a new prediction model to control ignition timing. In this model, an empirical equation of Arrhenius expression including some sub-models and Livengood-Wu integral were applied to consider the in-cylinder condition of a mixture formed by fuel injection. the model constants were determined based on the experimental results obtained by Design of Experiments (DOE) so that sufficient prediction accuracy could be achieved for transient operating condition. By using a mass-produced engine Control Unit (ECU) employing feed-forward control logic based on this model, we confirmed that the ignition timing in the transient operating mode could be controlled rather well by reflecting a predicted ignition delay period to fuel injection timing. With the controllability of ignition timing, the robustness of engine performances in terms of fuel consumption, exhaust gas and combustion noise could be improved with PCI combustion. Copyright © 2012 by the Japan Society of Mechanical engineers.

关键词： Diesel engines

来源：评论

学校读者我要写书评

暂无评论

Visualization of particulate matter in a heavy duty diesel engine via laser optical techniques

Visualization of particulate matter in a heavy duty diesel e...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Busch, Stephen Roßbach, Martin Wagner, Uwe Suntz, Rainer Velji, Amin Bockhorn, Henning Spicher, Ulrich Institute of Internal Combustion Engines Kaiserstr 12 76131 Karlsruhe Germany Institute of Chemical Technology and Polymer Chemistry KIT Engesserstr. 20 76131 Karlsruhe Germany Engler-Bunte-Institute Division of Combustion Technology Engler-Bunte-Ring 1 76131 Karlsruhe Germany

In this work, the RAYLIX measurement technique is applied for the first time in the combustion chamber of a direct injection, heavy duty Diesel engine. this technique is a combination of elastic Rayleigh scattering, laser induced incandescence, and extinction. When applied properly, it can provide spatially-resolved information about soot particle diameters, soot concentrations, and particle number densities in a measurement plane within the engine. Specially designed endoscopic optics are used in combination with an optically accessible heavy duty Diesel engine to evaluate the suitability of this measurement technique as a diagnostic tool in a close-to-production Diesel engine. A low-load operating point is chosen for the first application of the measurement technique. For both Diesel fuel and a Diesel-ethanol-water emulsion, results are presented for EGR rates of 0% and 30%. For the operating conditions presented here, it is demonstrated that EGR delays the onset of soot formation and decreases soot formation early in the combustion. the use of the Diesel-ethanol-water emulsion decreases early soot formation to an even greater extent. Copyright © 2012 by the Japan Society of Mechanical engineers.

关键词： Direct injection

来源：评论

学校读者我要写书评

暂无评论

Quantitative in-cylinder fuel measurements in a heavy duty diesel engine using structured laser illumination planar imaging (SLIPI)

Quantitative in-cylinder fuel measurements in a heavy duty d...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Sjöholm, Johan Chartier, Clément Kristensson, Elias Berrocal, Edouard Gallo, Yann Richter, Mattias Andersson, Öivind Aldén, Marcus Johansson, Bengt Division of Combustion Physics Lund University P.O. Box 118 SE-221 00 Lund Sweden Division of Combustion Engines Lund University P.O. Box 118 SE-221 00 Lund Sweden

Laser-induced fluorescence (LIF) for quantitative fuel concentration measurements in a combustion engine is a challenging task. Measuring close to the walls of the combustion chamber is even more challenging as both the incident laser light and the signal are strongly reflected on the walls of the combustion chamber. By using a new technique called Structured Laser Illumination Planar Imaging (SLIPI) such background effects, as well as unwanted multiply scattered light, can be suppressed allowing for higher measurement accuracy. In this article we demonstrate, for the first time, the feasibility of the SLIPI technique for gas phase LIF and in-cylinder measurements. Results from regular LIF and SLIPI measurements are also compared. the measurements were made on a non-reacting fuel-jet with acetone as a fuel tracer in a heavy duty diesel engine (Scania D12). It is observed that the equivalence ratio measured by SLIPI in the free part of the jet is only two thirds of that measured by regular LIF during the early jet development. Copyright © 2012 by the Japan Society of Mechanical engineers.

关键词： Combustion chambers

来源：评论

学校读者我要写书评

暂无评论

Spectrum analysis of chemiluminescence of a low sooting PCCI diesel engine operating with moderately early injection timing

Spectrum analysis of chemiluminescence of a low sooting PCCI...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Kiplimo, Robert Tomita, Eiji Kawahara, Nobuyuki Yokobe, Sumito Department of Mechanical Engineering Okayama University Tsushima-Naka 3-1-1 Kita-Ku Okayama 700-8530 Japan Technology Support and Development Department Mitsui Engineering and Shipbuilding Co. Ltd. Machinery Factory Machines and Systems Headquarter 1-1 Tama 3-chome Tamano Okayama 706-8651 Japan

the spectral analysis of chemiluminescence of a PCCI diesel engine operating with moderately early injection timing was carried out in a single cylinder test engine. Investigations were conducted through direct visualization of the combustion phenomena with spectroscopic measurement of the intermediate species using a spectrometer coupled to ICCD camera. In order to understand the chemical kinetics of auto-ignition and combustion mechanism in PCCI engine, the spectral analysis of chemiluminescence was carried out. the following intermediate species were identified;OH*, CH*, CO-O recombination and formaldehyde (CH2O) which marked the different combustion phases. Formaldehyde was detected in the low temperature oxidation (LTO) region and isolated clearly by high spectral resolution. the OH* radicals marked the regions with premixed fuel-air mixtures and high temperature oxidation (HTO) region. CH* radicals were noted to mark well the fuel-rich region within the piston cavity after fuel impingement on the Derby hat wall. Soot formation arising from the fuel impingement on the Derby hat wall was oxidized in the late combustion phase. High temperature indicated by high intensity of OH* radicals led to faster oxidation of the soot in the late combustion phase. Copyright © 2012 by the Japan Society of Mechanical engineers.

关键词： Spectrum analysis

来源：评论

学校读者我要写书评

暂无评论

Simultaneous spatial resolved measurement of vapor mass fraction and temperature of an evaporating fuel spray under DI-SI-engine conditions with planar laser-induced fluorescence

Simultaneous spatial resolved measurement of vapor mass frac...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Trost, Johannes Zigan, Lars Leipertz, Alfred Lehrstuhl für Technische Thermodynamik University of Erlangen-Nuremberg Am Weichselgarten 8 D-91058 Erlangen Germany Erlangen Graduate School in Advanced Optical Technologies Paul-Gordan-Str. 6 D-91052 Erlangen Germany

the reduction of fuel consumption and pollutant emission is the main objective in development of modern IC-engines. A promising method to achieve this is the use of DI-SI engines with a spray-guided mixture formation. One advantage in efficiency of direct injection is the evaporation cooling of the fuel, which allows a higher compression. Although the compression temperature inside the engine can be calculated easily from the boundary conditions, the resulting mixture is not homogeneous through the combustion chamber. thus, a spatial and temporal resolved measurement of the temperature and fuel concentration during injection is required to locally resolve evaporation rate, mixing and cooling in the spray. An approved method to measure temperature and concentration with a high temporal and spatial resolution under engine relevant conditions is planar laser-induced fluorescence (PLIF). For measurements in the spray, 3-pentanone as fluorescence tracer is added to a non-fluorescent surrogate fuel. the spray of a multi-hole injector is excited quasi-simultaneously by two different excimer lasers (2-line LIF), the temperature and the vapor mass fraction of the fuel can then be calculated from the two signals. the measurements are conducted in a high temperature/pressure cell, where engine relevant conditions can be simulated. To quantify temperature and concentration correctly, a precise fluorescence calibration of the tracer in a flow cell as well as an optimized post processing strategy of the raw images is presented. the results of the measurement are compared to a CFD-simulation under same conditions. Copyright © 2012 by the Japan Society of Mechanical engineers.

关键词： Fuels

来源：评论

学校读者我要写书评

暂无评论

Application of a conditional moment closure combustion model to a large two-stroke marine diesel engine reference experiment

Application of a conditional moment closure combustion model...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Bolla, Michele Wright, Yuri M. Boulouchos, Kostantinos ETH Zurich Switzerland ML L20 Sonnegstrasse 3 CH-8092 Zurich Switzerland

In this study, a first application of a high fidelity Conditional Moment Closure (CMC) combustion model is presented for autoigniting Diesel sprays with dimensions and time-scales of large marine Diesel engines. Results have been compared with data available from an optically accessible large two-stroke marine Diesel engine reference experiment. A one-hole co-axial injector with an orifice diameter of 0.875 mm was employed. Four different test cases have been considered, where the gas temperature at start of injection (SOI) ranges from 730 to 910 K and the ambient density was kept constant at 33 kg/m3. Validation is performed by means of ignition delay time, ignition location and flame lift-off length. Ignition delays were over/underpredicted by within 9 and 23 percent, whereas the highest errors for the flame lift-off length amounted to 13 percent. the trend of the ignition spot shifting to downstream locations for lower temperatures was correctly reproduced, while the accuracy of the predictions was within 40 percent. Experimental images of OH* chemiluminescence confirmed a flame region consistent with the simulation and the lateral deviation of the spray due to the characteristic swirling environment was well reproduced. the good agreement reported suggests that CMC is capable to reproduce the complex phenomenology of a lifted autoigniting spray flame also for a large injector *** © 2012 by the Japan Society of Mechanical engineers.

关键词： Gas temperature

来源：评论

学校读者我要写书评

暂无评论

Supermulti-jets colliding for realizing the Ultimate engine: Proposed by shock tube analysis, computation, and theoretical thought

Supermulti-jets colliding for realizing the Ultimate Engine:...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Naitoh, Ken Tanaka, Shinichi Emoto, Takehito Kainuma, Yusuke Kurihara, Mistuhide Shimizu, Dai Nonaka, Shouhei Iseno, Makoto Kubota, Tomoaki Hashimoto, Seiji Department of Applied Mechanics and Aerospace Engineering Waseda University 3-4-1 Ookubo Shinjuku-ku Tokyo 169-8555 Japan

three types of experiments of shock-tube, computation, and theoretical thought indicate a high potential of the new compression principle, which was proposed by first-author's patents and previous reports of us. the engine based on the principle essentially differs from the traditional four types of engines with piston, turbofan, ran-scram, and pulse-detonation, because the new compression principle is based on supermulti-jets colliding with pulsation. this engine makes it possible that higher compression ratios result in lower noise, lower emissions, and higher thermal efficiency. A way to generate pulsation is a new rotary plate valve, which is relatively silent. Shock tube experiments and numerical simulations on super-computers show a possibility of stable and high compression. this compression principle with supermulti-jets colliding can be used for three purposes of automobiles, aircrafts, and electric power plants. To say more on the possibility for near future automobiles, this compression principle is also effective for preventing the knocking phenomenon as the critical problem for small turbo-charged engines and also for realizing higher-power Atkinson cycle, extremely lean burning in direct injection engines, and silent auto-ignition engines of gasoline. Copyright © 2012 by the Japan Society of Mechanical engineers.

关键词： Electric power systems

来源：评论

学校读者我要写书评

暂无评论

Numerical analysis and statistical description of the primary breakup in fuel nozzles of large two stroke engines for the application in CFD engine simulations

Numerical analysis and statistical description of the primar...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Hensel, Sebastian Herrmann, Kai Schulz, Reiner Weisser, German Wärtsilä Switzerland Ltd Zürcherstr. 12 CH-8401 Winterthur Switzerland

In this work, the in-nozzle flow and primary breakup of fuel nozzles applied in large two stroke engines was analyzed by combined RANS and LES simulations. Intensive investigations have been performed to describe the influence of geometrical design features and flow conditions inside the nozzle on the droplet diameters, velocities and locations of origin. It is shown that the spray and droplet formation in large two stroke engines is highly unsymmetrical and depends on the nozzle geometry, location of the orifice and also on the upstream flow conditions. Disturbances and a sharp redirection of the flow into the nozzle orifice lead to a deflection of the dense fuel core, while an eccentricity of the nozzle bore induces a wrinkling up and rotation of the dense core around its central axis. Both phenomena lead to an asymmetrical disintegration of the liquid core. To describe the primary breakup and the aforementioned phenomena in CFD in-cylinder simulations, prior in-nozzle flow LES simulations are realistically not manageable and inefficient, as they require extensive computational effort. Hence, a statistical model to describe the primary breakup in Lagrangian spray simulations is introduced. Depending on thermodynamic conditions and nozzle geometry, droplet parcels are generated around the dense core by using probability density functions (PDF) for the droplet diameter, velocity and location. the PDFs as well as correlations for the dense core length, deflection of the spray and mean droplet diameter were derived from LES *** © 2012 by the Japan Society of Mechanical engineers.

关键词： Computational fluid dynamics

来源：评论

学校读者我要写书评

暂无评论

Application of a dedicated EGR configuration to a V6 engine: A novel concept for high efficiency gasoline engines

Application of a dedicated EGR configuration to a V6 engine:...

引用

8th international conference on modeling and diagnostics for advanced engine systems, comodia 2012

作者： Gingrich, Jess Mehta, Darius Alger, Terry Czekala, Michael Shelby, Michael Southwest Research Institute Department of Engine and Vehicle R and D San Antonio TX United States Research and Innovation Center Ford Motor Company Dearborn MI United States

Southwest Research Institute has demonstrated the ability of high levels of cooled EGR to significantly improve the fuel consumption of a positive ignition engine by reducing thermal losses, suppressing end gas knock and decreasing pumping losses. High levels of EGR dilution also simultaneously reduce the emissions of NOx, CO, and particle emissions across the full operating range of the engine. However, the use of cooled EGR has several challenges, including a reduction in combustion rates, decreased stability, lower combustion efficiency, and increased demands on the air handling system. A new concept for configuring engine hardware, called Dedicated EGR (D-EGR), was proposed in a previous publication [1] to reduce many of these deficiencies and increase the fuel consumption benefit from cooled EGR. However, in the 4-cylinder application discussed in the previous work, the engine suffered from imbalances due to the pulsing nature of the Dedicated EGR loop. In this work, the D-EGR concept was pushed to the extreme. A V6 engine was configured to run with 50% EGR by using 3 of the 6 cylinders in D-EGR mode. A series of 1-D simulations was undertaken to investigate the potential to achieve the desired torque curve in D-EGR mode, examining single-stage and two-stage boosting with combinations of superchargers and turbochargers. An investigation of the dilution tolerance of various high energy ignition systems was performed to meet the aggressive 50% D-EGR target. then engine was then demonstrated to operate with 50% D-EGR and the improvement in fuel consumption was documented at a series of part load conditions. the results show that this technology has considerable potential for high efficiency *** © 2012 by the Japan Society of Mechanical engineers.

关键词： Hydrogen

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共6页 << < 1 2 3 4 5 6 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：