计算机仿真
計算機倣真
계산궤방진
COMPUTER SIMULATION
2010年
4期
271-274
,共4页
杜太焦%束庆邦%陈志华%张相华
杜太焦%束慶邦%陳誌華%張相華
두태초%속경방%진지화%장상화
高速目标%激光%辐照效应%数值仿真
高速目標%激光%輻照效應%數值倣真
고속목표%격광%복조효응%수치방진
High speed target%Laser%Radiation effects%Numerical simulation
为了研究目标高速运动情况下,高速气流对流换热对激光辐照效应的影响,通过编制了高速目标激光辐照温升效应仿真程序.考虑了对流换热因素和材料参数随温度的变化.为了保证仿真结果的可信性,从理论和实验两方面对仿真模型的算法和参数进行了验证.仿真计算结果表明,对流换热在一定程度上减弱了激光辐照下材料的温升效应,但针对激光辐照下的其它效应,对流换热的影响程度与具体应用有关.
為瞭研究目標高速運動情況下,高速氣流對流換熱對激光輻照效應的影響,通過編製瞭高速目標激光輻照溫升效應倣真程序.攷慮瞭對流換熱因素和材料參數隨溫度的變化.為瞭保證倣真結果的可信性,從理論和實驗兩方麵對倣真模型的算法和參數進行瞭驗證.倣真計算結果錶明,對流換熱在一定程度上減弱瞭激光輻照下材料的溫升效應,但針對激光輻照下的其它效應,對流換熱的影響程度與具體應用有關.
위료연구목표고속운동정황하,고속기류대류환열대격광복조효응적영향,통과편제료고속목표격광복조온승효응방진정서.고필료대류환열인소화재료삼수수온도적변화.위료보증방진결과적가신성,종이론화실험량방면대방진모형적산법화삼수진행료험증.방진계산결과표명,대류환열재일정정도상감약료격광복조하재료적온승효응,단침대격광복조하적기타효응,대류환열적영향정도여구체응용유관.
In order to investigate the influence of convection to laser radiation effect for high speed target,a simulation code for laser heating effect is developed,which considers the convection of high speed flow and the nonconstant matter properties.The simulation model is validated using a theoretical example and an experiment to ensure its creditability.Simulation result indicates that high speed flow convection can reduce the laser heating effect to a certain extent,but for other effect under the laser radiation,the influence of convection effect depends on application background.
