110 likes | 208 Views
ORION AEROSPACE. Aerodynamics Preliminary Design Review #1 October 3, 2000. Patrick Dempsey Bridget Fitzpatrick Heather Garber Keith Hout Jong Soo Mok. ORION AEROSPACE. Aircraft Geometry – 3-View. ORION AEROSPACE. Aircraft Geometry. Airfoil selection process
E N D
ORION AEROSPACE Aerodynamics Preliminary Design Review #1 October 3, 2000 Patrick Dempsey Bridget Fitzpatrick Heather Garber Keith Hout Jong Soo Mok
ORION AEROSPACE Aircraft Geometry – 3-View
ORION AEROSPACE Aircraft Geometry • Airfoil selection process • Gather data on various airfoils • Run data thru xfoil • Compare xfoil to experimental data (www.nasg.com) • -Airfoil section • Wing: Selig Donovan 7062 • Vertical tail: flat plate assumption • Horizontal tail: flat plate assumption
ORION AEROSPACE Aircraft Geometry
ORION AEROSPACE Aircraft Geometry
ORION AEROSPACE Airfoil Data – S/D 7062
ORION AEROSPACE Aircraft Geometry
ORION AEROSPACE Aircraft Geometry • Aircraft wetted area: 59.5 ft2 • Wing – 38.70 ft2 • Struts - .83 ft2 • Tails – 9.01 ft2 • Landing gear - .003 ft2 • Aspect ratio of wing: 2.2
ORION AEROSPACE Aerodynamic Mathematical Model • Lift Coefficient - CL=Clalpha*(alpha-alpha0lift) -Drag Coefficient - CDo=Cdwing+Cdfuselage+Cdvtail+Cdhtail+CdLg+CdStrut CDi=(CL^2)/(pi*AR*e) CD=CDo+CDi -Clmax - 2D: 1.53 - 3D: 1.22
ORION AEROSPACE Questions?