ANSYS Fluent 19.0服务器用户指南：保密与授权须知

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ANSYS Fluent as a Server Users Guide (Release 19.0) 是由 ANSYS, Inc. 出版的一份详细的技术文档，旨在帮助用户在服务器环境下有效地利用 ANSYS Fluent 进行仿真分析。ANSYS Fluent 是一款强大的流体动力学软件，广泛应用于工业设计、航空航天、能源和汽车工程等领域，用于解决复杂的流体流动、热传递和多相流问题。该用户指南涵盖了以下几个关键知识点： 1. **服务器部署**：文档详细解释了如何将 ANSYS Fluent 安装和配置在服务器环境中，包括硬件需求、网络设置以及性能优化策略，确保在大规模计算任务中提供高效性能。 2. **分布式计算**：介绍了如何利用服务器集群进行并行计算，以处理大型复杂工程模拟，包括网格划分、数据管理和同步技术，以提高计算效率。 3. **安全性与许可管理**：强调了版权和商标信息，以及未经授权使用软件的禁止规定。此外，文档还涉及如何正确管理许可证，确保在服务器上合规地使用 ANSYS Fluent 的功能。 4. **技术支持和联系方式**：提供了 ANSYS 的客户服务信息，包括电话和电子邮件支持，以及访问公司网站获取最新更新和资源的途径。 5. **免责声明与保密性**：文档强调软件中的商业秘密和专有技术，并提醒用户这些信息的敏感性，要求用户在使用过程中遵守保密协议，不得泄露或滥用。 6. **产品特性和功能**：介绍了 FLUENT 和相关品牌的商标信息，如 ICEM CFD 和 FLEXnet，表明这些工具在 ANSYS Fluent 解决方案中的角色，以及它们各自的优势和适用场景。 7. **故障排除与最佳实践**：指南还可能包含了一些常见问题的解决方案、性能调优技巧以及最佳工作流程，以帮助用户避免常见问题并充分利用软件的潜力。 ANSYS Fluent as a Server Users Guide (Release 19.0) 是一份实用的参考资料，对那些希望在服务器环境中实现高效、准确的流体动力学模拟的专业人士来说，是不可或缺的工具。通过阅读和遵循这份指南，用户可以深入了解如何充分利用 ANSYS Fluent 提供的高性能计算能力，提升其工程项目的仿真效果。

Chapter 2: Fluent as a Server Session Management

This chapter provides information on starting and managing Fluent as a Server solver sessions that can

be accessed by remote client applications.

2.1. Fluent as a Server Sessions

2.2. Connecting to Fluent In Server Mode

2.1. Fluent as a Server Sessions

A Fluent as a Server session is very similar to a conventional stand-alone Fluent session, but with the

addition of an Internet Inter-ORB Protocol (IIOP) interface exposed that accepts connections from suitable

client applications. This capability is different from batch mode operation in that commands can be issued

to the running session at any time rather than just from a predefined journal file. This allows solution

steering and other manipulations without exiting from the Fluent session.

2.1.1. Starting Fluent In Server Mode

You can start Fluent in Server Mode in either of two ways:

• from the Fluent Launcher by specifying particular environment variables.

• from the command line by passing specific options to the Fluent executable.This is useful if you intend

to create a script or batch file to launch Fluent in Server mode.

In either case, the Fluent as a Server session creates a keyfile in the session working directory with the

information necessary for a client to connect to the session. See Fluent as a Server Keyfile (p. 8) and

Connecting to Fluent In Server Mode (p. 9) for details.

Important

While it is technically possible to start multiple Fluent as a Server sessions in the same

working directory, this is not recommended as it could lead to inadvertent user file conflicts

or corruption. For instance, two users, each running their own simulations, could both attempt

to write out contour plots titled pressure_contours.png leading to one user inadvert-

ently overwriting the other’s file.

2.1.1.1. Startup Options

The startup and behavior of Fluent as a Server can be controlled by several command line options and

environment variables.

of ANSYS, Inc. and its subsidiaries and affiliates.

Environment Variables

FLUENT_AAS

controls whether to start Fluent in Server mode. If FLUENT_AAS is set to 1, the Fluent session will be started

in Server mode.

Note

FLUENT_AAS is observed only in the Environment tab of the Fluent Launcher.

AAS_HOST

can be set to an IP address on the server machine to allow connection only from clients with network access

to the specified IP. Connections can be restricted to being from the local machine only by setting

AAS_HOST=localhost. If AAS_HOST is not set, any client with access to at least one IP address can

access the Fluent as a Server session (this is equivalent to having all possible IPs in the DNS of the server

in the AAS_HOST variable).This behavior is useful when starting Fluent as a Server session using SGE

where the IP address of the host machine is not known in advance.

AAS_PORTS

can be set to a port number or a range of port numbers on which to listen for connections. If set to a single

port number, Fluent will attempt to use that port to listen for connections.You can specify a range of ports

by using the format:

<startport>/portspan=<num>

In this case, Fluent will use the first available in the range of <num> ports beginning with

<startport>. For example, to specify that Fluent should use a port in the range of 1000–1009

you would use:

AAS_PORTS=1000/portspan=10

FLUENT_AAS_KEY_FILE

specifies a name for the keyfile generated when Fluent as a Server is started.This name will only be used

if no name is specified with the —aas_key_file command line option. See Fluent as a Server Key-

file (p. 8) for details.

Command Line Options

—aas

instructs Fluent to start in server mode. See Steps to Start Fluent in Server Mode From the Command

Line (p. 8).

—aas_key_file

can be used to specify the name of the key file generated by Fluent as a Server containing connection in-

formation for the session. See Fluent as a Server Keyfile (p. 8).

2.1.1.2. Steps To Start Server Mode From Fluent Launcher

To start Fluent as a Server from the Fluent Launcher, perform the following steps:

1. Start Fluent Launcher and configure dimensionality and options as you normally would (see Starting and

Executing ANSYS Fluent in the Getting Started Guide).

2. Click the Show More Options button to expand the Launcher settings (if necessary).

of ANSYS, Inc. and its subsidiaries and affiliates.6

Fluent as a Server Session Management

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