Mesh stitching method for moving and stationary bodies

An efficient and versatile mesh method is suggested and implemented for problems involving individual overlapping mesh blocks around moving objects. The overlapped mesh blocks are combined using a stitching stripe, which considers smooth transition of the mesh element size between the blocks. Interpolation of the flow values between the mesh blocks is not needed. This is considered as a relative advantage of this method compared to the overset mesh method. Unsteady flow around an oscillating body test case is used to demonstrate applicability of this method. Other test cases include hypothetical multiple flapping airfoils in relative motion and store separation from a store bay.

Hareketli ve sabit cisimler için ağ yama yöntemi

Bu çalışmada hareketli nesneler etrafında birbiri ile örtüşen çözüm ağlarını içeren problemler için az çaba ile üretilebilen ve yaygın olabilecek bir yöntem önerilmiş ve uygulanmıştır. Örtüşen çözüm ağ blokları dikiş atma yöntemi kullanılarak, ağ hücre büyüklerini dikkate almak suretiyle yumuşak yama bandı oluşturularak birleştirilmiştir. Çözüm değerlerini aktarırken interpolasyon yapmaya ihtiyaç duyulmamaktadır. Bu sebeple, mevcut yöntem benzer chimera yöntemine göreceli bir avantaj sağlamaktadır. Yunuslama hareketi yapan bir kanat profile etrafındaki akış, bu yöntemi göstermek için kullanılmıştır. Diğer test problemleri ise bu çalışmaya özel olarak deneme amacıyla oluşturulmuş birbirine göre hareket eden çoklu kanat profile ile uçaktan ayrılan bir nesneye benzetim yapmaktadır.

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