<DOC>
<DOCNO>
348
</DOCNO>
<TITLE>
turbulent boundary layer in compressible fluids .
</TITLE>
<AUTHOR>
van driest,e.r.
</AUTHOR>
<BIBLIO>
j.ae.scs. 18, 1951, 145.
</BIBLIO>
<TEXT>
  the continuity, momentum, and energy differential equations
for turbulent flow of a compressible fluid are derived, and the
apparent turbulent stresses and dissipation function are identified
.  a general formula for skin friction, including heat transfer
to a flat plate, is developed for a thin turbulent boundary
layer in compressible fluids with zero pressure gradient .  curves
are presented giving skin-friction coefficients and heat-transfer
coefficients for air for various wall-to-free-stream temperature
ratios and free-stream mach numbers .
  in the special case when the boundary layer is insulated, this
general formula yields skin-friction coefficients higher than those
given by the von karman wall-property compressible-fluid formula
but lower than those given by the von karman incompressible-fluid
formula .  heat transfer from the boundary layer
to the plate generally increases the friction and heat-transfer
coefficients .
</TEXT>
</DOC>
