by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, D.C.], [Springfield, Va .
Written in English
|Statement||Nihad Dukhan ... [et al.].|
|Series||NASA technical memorandum -- 107109.|
|Contributions||Dukhan, Nihad., United States. National Aeronautics and Space Administration.|
|The Physical Object|
Get this from a library! Convective heat transfer from castings of ice roughened surfaces in horizontal flight. [Nihad Dukhan; United States. National Aeronautics and Space Administration.;]. Convective Heat Transfer from Castings of Ice Roughened Surfaces in Horizontal Flight Authors / Details: Nihad Dukhan, University of Toledo; G. James Van Fossen Jr., NASA; K. Cyril Masiulaniec and Kenneth J. DeWitt, University of Toledo. Test strips taken from these castings were outfitted with heat flux gages, such that when placed in a dry wind tunnel, they could be used to experimentally map out the convective heat transfer coefficient in the direction of flow from the roughened surfaces. The effects on the heat transfer coefficient for parallel flow, which simulates horizontal flight, were studied. Convective Heat Transfer on Ice-Roughened Surfaces If you have ever been in an airport in the winter you may have noticed flight crews spraying something at the airplanes before they take off. This is anti-ice spray, necessary because the airplane may fly through air that has tiny entrained super-cooled water droplets that will stick to the wings on impact (or be ingested into the engine) and freeze.
Many previous investigations have focused on the heat transfer coefficient on the surfaces between these ribs and only a few studies report the heat transfer coefficient on the rib surfaces themselves. The present study investigated the heat transfer coefficient on the surfaces of 45 deg. round-corner ribs. turbulence on convective heat transfer to a smooth and rough airfoil. Another objective was to obtain needed heat transfer data for the NASA Lewis LEWICE ice growth prediction code. These tests provide in-flight heat transfer data for a NACA airfoil with a cm (21 inch) chord. Future tests will measure heat transfer from the sameCited by: Determination of surface convective heat transfer coefficients by CFD Adam Neale1 Dominique Derome1, Bert Blocken2 and Jan Carmeliet2,3 1) Building Envelope Performance Laboratory, Dep. of Building, Civil and Environmental Engineering, Concordia University, de Maisonneuve blvd West, Montreal, Qc, H3G 1M8, corresponding author e-. Heat--Convection. 2. Heat--Transmission. I. Tardu, Sedat, II. British Library Cataloguing-in-Publication Data A CIP record for this book is available from the British Library ISBN: Printed and bound in Great Britain by CPI Antony Rowe, Chippenham and Eastbourne. x Convective heat Transfer 17 Tanrp esotroquni.
Surface roughness introduced by ice accretion and its effect on surface convective heat transfer have been tested and modeled, based on 10 experimental test cases. Example - Convective Heat Transfer. A fluid flows over a plane surface 1 m by 1 m. The surface temperature is 50 o C, the fluid temperature is 20 o C and the convective heat transfer coefficient is W/m 2o C. The convective heat transfer between the hotter surface and the colder air can be calculated as. q = ( W/(m 2o C)) ((1 m) (1 m. MechHEAT TRANSFER HOMEWORK Solutions 4. (Problem in the Book) A vertical plate m high, maintained at a uniform temperature of 54oC, is exposed to saturated steam at atmospheric pressure. a) Estimate the condensation and heat transfer rates per unit width of the Size: KB. 1. Introduction. Convection heat transfer takes place whenever a fluid is in contact with a solid surface that is at a different temperature than the fluid. If the fluid is moving past the solid surface because of an external driving force, like a pump or blower, then it is called forced Size: 1MB.