Aerodynamic characteristics of the NACA RM-10 research missile in the Ames 1- by 3-foot supersonic wind tunnel no. 2 : pressure and force measurements at Mach numbers of 1.52 and 1.98
Year: 1951
Type: article
Abstract: An eqerimental tivestigation of theaerodynamic characteristic cs of a fir+etabilized bodyof revolution, designated as theRM-10, wasmade In theNACAAmes1-by +foot supersonic windtunnel No.2.Pressure distributions andforcecharacteristics weredetermined forthebody aloneat Machmuibers of 1.52and1.98.Forcecharacteristics of the body-tiil ccmibination weredetermined at a Machnumber of 1.98.Dataare presented forReynolds nunibers of 8.6 and17.4millions,basedon body length.Of thethreetheoretical methods usedforprediction of thezer~ liftpressure distribution forthebodyalone, thelinearized theory of JonesandMargolis (NACA TN 108I.) was in bestagreement withtheexpe~ imental Ustribution overtheforebody.Oyertheafterbody, themagnitudesof theexperimental pressure coefficients werein general lessthan preticted by theory.Ezcept fortheaftleeward regions of thebody whereflowseparation occurred at highangles of attack, thedistribution of lifting pressure was example, NACATN P044.) foredrag increment, and accurately predicted by potential theory.adequately preticted by inviscid theory, (See, for Thevariation withangleof attack of thelift, cente=f-pressure position weremuchmme themethod of Allen(NACA mA9r26) thanby Comparison of theexperimental lift,foretiag, andpitc~ng~ent characteristics of thebodyalone withtheresults of a similar investigation in theLewis8-by &foot supersonic windtunnel(NACA RME5OD1O andNACAKM E50D28) shuwsthatforMachnumbers of 1.52and1.98thereislittle effect ofReynolds nuniber on thesecharacteristics within the Reynolds nuniber rangeof 8.6 to 30millions.Similar comparisons forthe NACAFM A51G13 body-tail combination fora M&ohnumber of 1.98showthat, withthe exception of theminimum foredrag, theeffeot on theforoeandmoment oharacteristios of theincrease in Reynolds number from8.6 million to 30million is Hmll.Themindmumfo redrag inoreases approximately 16 percent withan inorease in Reynolds number from17.4million to 30million.* .
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W376902168