[Oral Presentation]气膜孔内颗粒沉积特性的数值模拟研究

Organized By

Hohai University

Monash University

Co-organized by

Southeast University

Jiangxi University of Science and Technology

Northeast University

DUT-BSU Scientific Research and Innovation Center

Suzhou University of Science and Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment

Sponsoring agency

KELI SDEM Software (Dalian) Co., Ltd.

Sugon Smart Computing Information Technology Co., Ltd.

Beijing Paratera Technology Co., Ltd.

Simpop Information Technology Co., Ltd.

Important Dates

Conference Announcement

December 2023, release First Round Announcement
Abstract Submission Deadline
March 31^th, 2024
Paper Submission Deadline
April 30^th, 2024
Registration
From January 1^st, 2024
Conference Schedule
May 31^st (Friday), 2024 On-Site Registration
June 1^st to 3^rd, 2024 Conference

气膜孔内颗粒沉积特性的数值模拟研究

ID：304 Submission ID：86 View Protection：ATTENDEE Updated Time：2024-05-20 09:52:12 Hits：524 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

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Abstract

污染物颗粒在燃气涡轮叶片冷却通道内的沉积将影响涡轮叶片的冷却特性和安全役寿命。为了探究气膜冷却通道中微细颗粒的沉积特性，采用EI⁃Batsh沉积模型对气膜孔中微细颗粒沉积情况进行数值仿真，探究了颗粒粒径对气膜孔中的颗粒运动特性及沉积特性的影响。随粒径增大，颗粒在气膜孔中的碰撞反弹增多，小粒径的颗粒随流性好，跟随冷却流沿气膜孔前缘运动，大粒径颗粒的随流性变差，不断碰撞壁面流出气膜孔；随着粒径增加，颗粒的沉积率明显降低，且当粒径大于2.5mm，孔内无沉积；颗粒在单排气膜孔中呈现两端气膜孔沉积较多，中间较少的现象。

Keywords

颗粒沉积，EI⁃Batsh沉积模型，斯托克斯数，孔内沉积

Speaker

余江涵

南京航空航天大学

Submission Author

余江涵南京航空航天大学

孙文静南京航空航天大学

Sponsored By

Hohai University

Panel of Computational Mechanics on Granular Materials, Working Party of Computational Mechanics, Chinese Society of Theoretical and Applied Mechanics

Jiangsu Society of Theoretical and Applied Mechanics