01406nab a2200229uuc4500001000800000005001700008008004100025035001200066040001300078041000800091100002500099245007700124520064500201650001900846650002800865650004200893700002600935700002400961700002700985700002601012773013801038131645520240202111738.0130219e20100701                    eng    a1316455  ccomduadb  aeng10aMarino, R.4auteaut10aPolar profile of the wall pressure on cylindrical bars in yawed gas flow3 aThe polar distribution of wall pressures in cross flow through a cell of four cylindrical tubes inclined at different angles 30o <= a <= 90o was experimentally studied using flow air at near atmospheric pressure flowing at  a maximum velocity of 30.8 m/sec (2200<=R <=6100).  The experiments show that the pressure coefficient is strongly influenced by the inclination angle. For perpendicular cross flow, the experiments were compared with those obtained from potential flow theory showing poor agreement. A model based on the curvature of the stream lines in the gap between bars agrees very well with the pressure coefficient at the gap.  aFlujo de gases  aPérdidas de energía  aCapa límite (Dinámica de fluidos)10aHerrero, V.4auteaut10aSilin, N.4auteaut10aConverti, J.4auteaut10aClausse, A.4auteaut0 tInvestigación Aplicada Latino Americana (Bahía Blanca, Argentina)gVol. 40, No. 03, Jul. 2010, 287-294w495513x0327-07930123981