Detail Simulations of Cavitating Flows Using Hybrid Unstructured Meshes   Oleh:  Arunajatesan, Srinivasan ; Hosangadi, Ashvin ; Ahuja, Vineet Jenis: Article from Bulletin/Magazine Dalam koleksi: Journal of Fluids Engineering vol. 123 no. 2 (2001), page 331-340. Topik: simulation; simulations; hybrid; meshes Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ89.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel A new multi - phase model for low speed gas / liquid mixtures is presented ; it does not require ad - hoc closure models for the variation of mixture density with pressure and yields thermodynamically correct acoustic propagation for multi - phase mixtures. The solution procedure has an interface - capturing scheme that incorporates an additional scalar transport equation for the gas void fraction. Cavitation is modeled via a finite rate source term that initiates phase change when liquid pressure drops below its saturation value. The numerical procedure has been implemented within a multi - element unstructured framework CRUNCH that permits the grid to be locally refined in the interface region. The solution technique incorporates a parallel, domain decomposition strategy for efficient 3D computations. Detailed results are presented for sheet cavitation over a cylindrical head form and a NACA 66 hydrofoil. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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