褚紅超博士學(xué)術(shù)報(bào)告會(huì)
發(fā)布時(shí)間：2025-06-26   閱讀：1364

題目：Thermodiffusive Instabilities in Hydrogen Flames: Analysis and Modeling

時(shí)間：2025年6月26日 10:00-11:30

地點(diǎn)：機(jī)械與動(dòng)力工程學(xué)院 F310會(huì)議室

邀請(qǐng)人：齊飛 教授（航空動(dòng)力研究所）


報(bào)告人簡(jiǎn)介

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褚紅超博士，本科畢業(yè)于同濟(jì)大學(xué)，后赴德國(guó)深造，先后獲得斯圖加特大學(xué)碩士學(xué)位和亞琛工業(yè)大學(xué)博士學(xué)位。在亞琛工業(yè)大學(xué)攻讀博士期間，他在Heinz?Pitsch教授和Stefan?Pischinger教授的聯(lián)合指導(dǎo)下，專(zhuān)注于湍流燃燒數(shù)值模擬研究。2022年12月起，他擔(dān)任亞琛工業(yè)大學(xué)燃燒技術(shù)研究所應(yīng)用反應(yīng)流課題組組長(zhǎng)。褚博士已在Combustion?and?Flame、Journal?of?Fluid?Mechanics和Proceedings?of?the?Combustion?Institute等國(guó)際頂級(jí)期刊發(fā)表多篇學(xué)術(shù)論文，其研究成果獲得第39屆國(guó)際燃燒會(huì)議湍流火焰專(zhuān)題杰出論文獎(jiǎng)。


報(bào)告摘要

To?reduce?greenhouse?gas?emissions,?hydrogen?is?a?promising?carbon-free?fuel?for?industrial?and?residential?burners,?as?well?as?for?internal?combustion?engines,?particularly?in?heavy-duty?vehicles.?However,?challenges?arise?from?its?specific?molecular?transport?and?combustion?properties,?which?differ?significantly?from?conventional?hydrocarbon?fuels.?In?particular,?lean?hydrogen?flames?are?prone?to?differential?diffusion?and?thermodiffusive?instabilities?that?significantly?affect?flame?dynamics,?heat?release?rates,?and?NOx?formation.?This?study?systematically?investigates?the?effects?of?differential?diffusion?on?hydrogen?flames?under?internal?combustion?engine?conditions,?with?emphasis?on?fuel?consumption?speed?and?interactions?with?mixture?inhomogeneities.?Building?on?this?foundation,?we?propose?a?novel?extension?of?the?turbulent?flame?speed?model?within?the?G-equation?approach?to?incorporate?thermodiffusive?instabilities?in?lean?premixed?hydrogen?flames.?The?validation?range?of?the?proposed?model?and?the?underlying?assumptions?are?thoroughly?discussed.

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