Nonlinearity in Lift of Slender Bodies at Incidenc

Comparison of Lift and Drag Forces for Some Conical Bodies in Supersonic Flow Using Perturbation Techniques

Numerical methods are not always convergent especially in higher velocities when shock waves are involved. A comparison analysis is performed to study the supersonic flow over conical bodies of three different cross sections circular, elliptic and squircle (square with rounded corners) shaped using  Perturbation techniques to find flow variables analytically. In order to find lift and drag forc...

Hypersonic flow past slender bodies in dispersive hydrodynamics

The problem of two-dimensional steady hypersonic flow past a slender body is formulated for dispersive media. It is shown that for the hypersonic flow, the original 2+ 0 boundary-value problem is asymptotically equivalent to the 1+ 1 piston problem for the fully nonlinear flow in the same physical system, which allows one to take advantage of the analytic methods developed for one-dimensional s...

Modeling slender bodies with the method of regularized Stokeslets

The motion and flow generated by immersed structures in a fluid in the Stokes regime can be modeled with a variety of different numerical methods. The mathematical structure of the Stokes equations allows one to describe the flow around a three-dimensional object using only information regarding its geometry. This leads to computational techniques such as boundary integral methods or the method...

Measurements of Zero-Lift Drag at Supersonic Speeds for a Symmetrical Slender Wing Model with Different Roughness Bands

Thw paper gives the results of tests in the A.R.A. 30" x 27" SupersonIc !l!wnel on a slender ogee wing (p = 0'45) to determine the drag at zem lift for the model fitted with vsx~ous alternatwe mughness bands. Tests were made at Mach numbers from M = I.6 to M = 2.4 over a wide range of Reynolds number from about R = 2.5 x IO= to R = 7rlOs,based on the wmg root chord of 2 ft. The results show tha...

Free-Flight Model Dynamic Stability Measurements on a ‘Not-so Slender’ Wing/Fin corn bination at Zero and Small Lift,