Development of a large-scale parallel and dispersed computation system of complexed heat transfer problems

复杂传热问题大规模并行分散计算系统的开发

• 批准号: 02302044
• 负责人: KOTAKE Susumu
• 金额: $ 9.66万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02302044/
• 关键词: Heat-transfer computation; Complexed nonlinear heat transfer; Parallel computation; Dispersed computation; Transputer; Czochralski crystal growth; 並列分散解析

The heat and mass transfer problems usually consist of complexed systems of various different transport processes. In order to obtain computational solution of them, it is necessary to solve the individual related processes as well as to couple their solutions into an integrated system. For this purpose, it should be solved by dividing the problem into parts depending on the transport process such as conduction, convection and radiation and by exchanging the boundary conditions each other. In the present research, the individual fields of the process are solved independently by the investigators, specialists in the field, with communicating the information of the boundary conditions which make the separated solutions into an integrated one. The subsystems of each investigator are also made to be decomposed into further subsystems in order to accelerate the calculation by using the transputers. Their computed results necessary for the integration are exchanged through the communication system between universities, JUNET. Two subjects to be solved are the individual computation dispersed under the communicable boundary conditions and the integration of different solutions. As an example of the problem, the process of semiconductor crystal growth by the Czochralski method is studied because it is highly non-linearly coupled with fundamental processes of heat and mass transfer. As the results, it is found that exchanging and imposing the boundary conditions of subsystem should be the most important factor for rate-controlling of the integration of the whole system.

传热传质问题通常由各种不同传输过程的复杂系统组成。为了获得它们的计算解，需要求解各个相关过程并将它们的解耦合成一个集成系统。为此，应根据传导、对流、辐射等传输过程将问题分成多个部分，并通过相互交换边界条件来解决。在目前的研究中，过程的各个领域由该领域的研究人员、专家独立求解，并交流边界条件的信息，使单独的解决方案成为一个集成的解决方案。每个研究者的子系统也被分解为更多的子系统，以便使用晶片机加速计算。集成所需的计算结果通过大学之间的通信系统 JUNET 进行交换。需要解决的两个问题是可通信边界条件下分散的个体计算和不同解的集成。作为该问题的一个例子，我们研究了直拉法半导体晶体生长过程，因为它与传热传质的基本过程高度非线性耦合。结果发现，子系统边界条件的交换和施加应该是整个系统集成速率控制的最重要因素。

项目成果

小竹 進他5名: "大学間ネットワ-クシステムを用いた大規模伝熱解析システムの開発" 日本伝熱シンポジウム評文集. 28. (1992)

Susumu Kotake 等 5 人：“使用大学间网络系统开发大型传热分析系统”日本传热研讨会评论集 28。（1992 年）。

S. KOTAKE et al.: "Development of a large-scale parallel and dispersed computation system of complexed heat transfer problems." 29th National Heat Transfer Symposium of Japan. (1992)

S. KOTAKE 等人：“开发复杂传热问题的大规模并行和分散计算系统。”