Boundary Layer Theory, Sixth Edition

Abstract

THE appearance of the fifth edition proves that this classic is hard to replace. It is the book which Ls kept for handy reference by the students even after the completion of a course for which Milne-Thomson Ls the required text. The book's success Ls explained by a text which Ls both concise and precise, and by a wealth of examples solved as well as examples posed. Even though some of the vector notation appears old-fashioned and would be advantageously replaced by component notation, no such complaints are possible concerning the contents, which are kept up to date by the author in this new edition.

Управление Воздушным Потоком Вокруг Цилиндрической Модели С Помощью Вращающейся Электрической Дуги Во Внешнем Магнитном Поле. Часть I

“…Нестаци-онарное обтекание цилиндрического тела вызывает коле-бания инженерных конструкций и их резонанс (крыльев самолетов, высотных зданий, длинных мостов, кабелей и морских инженерных сооружений), создает акустиче-ский шум [1][2][3][4]. Хорошо известны различные методы управления потоком за обтекаемыми цилиндрическими телами: вращение поверхности самого тела (эффект Магнуса [5][6][7][8][9][10][11]), использование отсоса пограничного слоя [2], а также использование плазменных актуа-торов (активных электроразрядных устройств) [12][13][14][15][16][17][18][19][20][21][22][23][24]. Основным достоинством плазменных актуаторов явля-ется их быстродействие, основанное на электронном управлении параметрами электрических разрядов.…”

Boundary Layer Mixture Model for a Microbubble Drag Reduction Technique

“…Based on the turbulent boundary theory [18], the water flow rate within the boundary layer of the plate can be calculated by…”

“…A seventh power velocity distribution [18] is assumed for the velocity distribution across the boundary layer…”

“…The Schlichting boundary thickness formula [18] is used to estimate the thickness of the boundary layer…”

The Linearized Crocco Equation

“…The stationary Prandtl system has been widely studied [12]. Despite its importance in engeneering applications [7], [15], very few results are known for the existence of (global in time) solutions of the instationary system [12,13,14]. In both cases, the stationary and the instationary one, a possible way to tackle the problem consists in using the so-called Crocco transformation [12].…”