TY - GEN
T1 - Numerical simulation of flow fields in large-scale segmented-type arc heaters
AU - Takahashi, Yusuke
AU - Kihara, Hisashi
AU - Abe, Ken-Ichi
PY - 2010/1/1
Y1 - 2010/1/1
N2 - Turbulent plasma flow in large-scale arc heater such as NASA 60 MW Interaction Heating Facility was numerically investigated and the distribution of the arc-heated flow-field properties were successfully obtained.The turbulent flow-field was described by the Reynolds- Averaged Navier-Stokes equations with a multitemperature model,tightly coupled with the electric field and the radiation-field calculations. In addition,an accurate and low-cost radiation model and a low-Reynolds number two-equation turbulence model were introduced into the flowfield simulation.It was quantitatively clarified that radiation and turbulence phenomena are very important mechanisms to transfer heat and momentum from high-temperature core region to cold gas region near the wall.To validate the present numerical model,the numerical solutions were compared with the experimental data,e.g.,arc voltage,mass-averaged enthalpy,chamber pressure and heat efficiency.It was indicated that the present flow-field simulation model showed good agreement over various operating conditions of the facilities.
AB - Turbulent plasma flow in large-scale arc heater such as NASA 60 MW Interaction Heating Facility was numerically investigated and the distribution of the arc-heated flow-field properties were successfully obtained.The turbulent flow-field was described by the Reynolds- Averaged Navier-Stokes equations with a multitemperature model,tightly coupled with the electric field and the radiation-field calculations. In addition,an accurate and low-cost radiation model and a low-Reynolds number two-equation turbulence model were introduced into the flowfield simulation.It was quantitatively clarified that radiation and turbulence phenomena are very important mechanisms to transfer heat and momentum from high-temperature core region to cold gas region near the wall.To validate the present numerical model,the numerical solutions were compared with the experimental data,e.g.,arc voltage,mass-averaged enthalpy,chamber pressure and heat efficiency.It was indicated that the present flow-field simulation model showed good agreement over various operating conditions of the facilities.
UR - http://www.scopus.com/inward/record.url?scp=84878435179&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84878435179&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84878435179
SN - 9781617820496
T3 - 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010
SP - 1470
EP - 1479
BT - 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010
PB - ICAS Secretariat
T2 - 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010
Y2 - 19 September 2010 through 24 September 2010
ER -