 laminar boundari layer equat method solut automat comput laminar boundari layer equat method solut automat comput method suitabl automat comput solv hartre-womerslei approxim incompress boundari-layer equat develop base iter process choleski method solv simultan set linear algebra equat program method automat comput discuss tabl solut boundari-layer equat region upstream separ point upstream neighbourhood separ solut compar goldstein's asymptot solut agreement good 