[Oral Presentation]热分层条件下风沙流streamer现象的大涡模拟

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

热分层条件下风沙流streamer现象的大涡模拟

ID：69 Submission ID：211 View Protection：ATTENDEE Updated Time：2024-04-09 22:35:36 Hits：490 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

在野外实际风沙运动中广泛存在温度变化导致的热分层现象，而热分层效应会显著影响大气湍流并改变风沙运动。本文基于颗粒Lagrangian轨迹模拟与湍流大涡模拟LES相结合的方法，研究了非中性层结大气风沙流中近地表沙条带（sand streamers）现象。通过数值模拟数据分析了sand streamers平均结构的形态和尺度大小随层结稳定性、摩阻风速的变化规律。并讨论了热分层流动中湍流结构对sand streamers形成机制的影响。

Keywords

热分层湍流，风沙运动，沙条带，大涡模拟

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