Question

rmodel past b A wate tunnel For Niswal observatior oe flu at ymls and obsorba 40s Elowing epecoles h water ynomically tunnel under If it wiere to operate as simidar aoncdkions Determbe Cetspending spsed f air in the tunnel poser veired eoir 1akglm Assume 2air 1:tsx to Nm Lair Later eater idglnd 2aate 4in5 Ns eivy Given P evL Whreedensiby of fhaid P pswer L characteriatic Lincar dimenain, chain N Linear Nelacihy o flid relative to tunnel 2Co-tificitnt ef dynamic Viscosity of fluia bA water tunne forNisual observation of Flow past model flowing at 4mls and absorbs 4 Os kw Operates with water f it were similar conditions Determine wind tunnel under dynamically to operate as Correspending speed" of air in the tunnel power xequired CAir 12 kglm Assumc s Ns Lair Lwater 10 kgl Ciater NS ater xIO Given P eiv'fL evL Where: e density of fluid P-power characteristic Lincar dimensin L of chain N Lincar Nelocity of fluid tunnel Co-efficient of dynamic Visconsity of fluid relative to

Answer 1

Solution For dynamic Similarity, (a) kawater Pair Vaix r lair . 2 x Vair -3 5 2.05 m/g air (b PYv*, P aix Awates 4.05 2 Гo3x 42 I2 xS2.05 0.823 KW Scanned with CamScanner