RT Journal Article
ID 243658183f0403d2
A1 Zhao, Jiaquan
A1 Liu, Peiqi
A1 Liu, Fengxia
A1 Gao, Jinji
A1 Hu, Dapeng
T1 NONEQUILIBRIUM CONDENSATION AND THERMALLY CHOKED FLOW IN A SHOCK TUBE
JF Heat Transfer Research
JO HTR
YR 2013
FD 2013-08-14
VO 44
IS 8
SP 745
OP 760
K1 nonequilibrium
K1 condensation
K1 unsteady state
K1 shock tube
K1 thermal choking
AB An explicit equation for the addition of critical heat to 1D compressible unsteady condensation flows inside a shock tube has been derived. The equation is of general validity and can be applied to vapor flow with or without a carrier gas. The results obtained show that the critical quantity of heat in an internal heat flow was larger due to phase transition than the external heat flow. When the flow is thermally choked, a shock wave is generated and propagates upstream. The reason for the onset of condensation is explained. It is inconsistent with the location of local static pressure which begins to rise in a shock tube with unsteady condensation flow. In addition, two types of condensation flow in a shock tube are simulated: the subcritical heat flow and the supercritical heat flow. Quantitative validation of the numerical model was made. The results showed good agreement between the values of numerical simulation and theoretical analysis.
PB Begell House
LK http://dl.begellhouse.com/journals/46784ef93dddff27,751b6ef61206f0e6,243658183f0403d2.html