{"id":3509,"date":"2019-02-12T16:09:18","date_gmt":"2019-02-12T16:09:18","guid":{"rendered":"https:\/\/cyflexdoc.wpengine.com\/usage-help-manual\/12-fluid-flow-computations\/critical_flow\/"},"modified":"2025-09-26T10:45:25","modified_gmt":"2025-09-26T15:45:25","slug":"critical_flow","status":"publish","type":"page","link":"https:\/\/cyflex.com\/index.php\/usage-help-manual\/19-fluid-flow-computations\/critical_flow\/","title":{"rendered":"critical_flow"},"content":{"rendered":"
\n

Purpose:<\/h3>\n<\/div>\n
\n
\n

Compute air mass flow on a continuous basis.<\/p>\n<\/dd>\n<\/dl>\n

Enter:<\/h3>\n
\n
\n

critical_flow<\/strong> <priority> <timer_name> <spec_file> [+c]<\/p>\n<\/dd>\n<\/dl>\n

Where:<\/h3>\n
\n
\n\n\n\n<\/colgroup>\n\n\n\n\n\n
\n

priority<\/p>\n<\/td>\n

\n

Specify the task priority.<\/p>\n<\/td>\n<\/tr>\n

\n

timer_name<\/p>\n<\/td>\n

\n

Specify the timer event name for processing computations.<\/p>\n<\/td>\n<\/tr>\n

\n

spec_file<\/p>\n<\/td>\n

\n

Specify the full path of the specification filename.<\/p>\n<\/td>\n<\/tr>\n

\n

+c<\/p>\n<\/td>\n

\n

Optional. Specify this flag to indicate the task is critical to the watchdog.\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/dd>\n<\/dl>\n

Example:<\/h3>\n
\n
\n

critical_flow<\/strong> 12 1000 \/specs\/cfv_spec.214 +c &
\nThe above command spawns critical_flow in the background at a priority of 12. The computations are performed once every one hundred milliseconds using the specifications in the file \/specs\/cfv_specs.214. The task is also assigned to be a critical task. As a result, if the task stops responding to the watchdog, any test that is running will be aborted.\u00a0 The critical_flow task will register it’s name with the filename (not the full pathame), in this case “cfv_spec.214”.\u00a0 This name can be used by the ‘re-read’ command to request that it update the specifications by reading the specification file again.\u00a0 This feature allows the specifications to be changed “on-the-fly” without slaying and restarting the app. Note: re-read feature is not available prior to 6.3.30 or 6.4.0.<\/p>\n<\/dd>\n<\/dl>\n

Notes:<\/h3>\n
\n
\n

 <\/p>\n<\/dd>\n<\/dl>\n

See Also:<\/h3>\n
\n
\n

Computing Critical Air Mass Flow<\/a><\/p>\n<\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"

Purpose: Compute air mass flow on a continuous basis. Enter: critical_flow <priority> <timer_name> <spec_file> [+c] Where: priority Specify the task priority. timer_name Specify the timer event name for processing computations. spec_file Specify the full path of the specification filename. +c Optional. Specify this flag to indicate the task is critical to the watchdog.\u00a0 Example: critical_flow […]<\/p>\n","protected":false},"author":47,"featured_media":0,"parent":1959,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3509","page","type-page","status-publish","hentry"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/3509","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/users\/47"}],"replies":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/comments?post=3509"}],"version-history":[{"count":0,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/3509\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/1959"}],"wp:attachment":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/media?parent=3509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}