Die Gotterwelt Homers

 
9781234451608: Die Gotterwelt Homers
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U S Government; Meyer, Paul
Editorial: RareBooksClub
ISBN 10: 1234451603 ISBN 13: 9781234451608
Nuevos Paperback Cantidad: 20
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BuySomeBooks
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Descripción RareBooksClub. Paperback. Estado de conservación: New. This item is printed on demand. Paperback. 74 pages. Original publisher: Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2010 OCLC Number: (OCoLC)713890194 Excerpt: . . . and x W ( x, x; ) ( x x 0 ) ( 2. 41 ) x x if either x 0 or x 0. Furthermore, let n n n ( w ) W ( ( u ), ( u ), ) ( 2. 42 ) x x j j j n n Then ( w ) and ( w ) so dened satisfy Eqs. ( 2. 38 ) and ( 2. 39 ) and have the property that j j n n n n ( w ) ( w ) 1 2 if 0 or ( u ) ( u ) ( 2. 43 ) x x j j j j 20 Note that: ( i ) to avoid dividing by zero, in practice either a small positive number such as 10 is added to each of the denominators in Eqs. ( 2. 40 ) and ( 2. 41 ), or one must make sure that the denition W ( x, x; ) W ( x, x; ) 1 2 instead of Eqs. ( 2. 40 ) and ( 2. 41 ) is applied when x x 0; and ( ii ) the special cases of Eqs. ( 2. 40 ) and ( 2. 41 ) with 1 and 2 are used in the slope-limiter proposed by van Leer 64 and van Albada et al. 65 . n n An extension of the c scheme is formed by Eqs. ( 2. 10 ) and ( 2. 37 ) with ( w ) and ( w ) being dened j j by Eq. ( 2. 42 ). Because it involves an weighted average which is dependent on a parameter , hereafter the scheme is referred to as the w- scheme. In a straightforward manner, the w- scheme has been extended to become the Euler w- scheme. The details are given in 5 . n n n Assuming 0 and ( u ) ( u ) , then Eqs. ( 2. 37 ), ( 2. 40 ), and ( 2. 41 ) imply that, of ( u ) and x x x j j j n ( u ), the one with smaller absolute value is assigned an weight factor 1 2. This observation coupled x j n n n with Eqs. ( 2. 36 ) - ( 2. 39 ) leads to the conclusion that, of ( u ) and ( u ), ( u ) will have an algebraic x x x j j j n n value closer to the one with smaller absolute value if ( u ) is evaluated as an weighted average of ( u ) x x j j n n and ( u . . . This item ships from La Vergne,TN. Paperback. Nº de ref. de la librería 9781234451608

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