{"id":16637,"date":"2025-03-04T07:17:29","date_gmt":"2025-03-04T10:17:29","guid":{"rendered":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=16637"},"modified":"2025-03-04T07:17:29","modified_gmt":"2025-03-04T10:17:29","slug":"una-metodologia-para-simular-balistica-interior-e-intermedia-con-tecnica-de-malla-dinamica-y-codigo-de-parametros-agrupados","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=16637","title":{"rendered":"Una metodolog\u00eda para simular bal\u00edstica interior e intermedia con t\u00e9cnica de malla din\u00e1mica y c\u00f3digo de par\u00e1metros agrupados"},"content":{"rendered":"

El art\u00edculo de la referencia investiga las primeras fases de la bal\u00edstica reactiva para proyectiles de gran calibre disparados desde un arma, utilizando una combinaci\u00f3n de m\u00e9todos de din\u00e1mica de fluidos computacional (CFD) axisim\u00e9tricos 0D y 2D. Detalla el desarrollo de un c\u00f3digo de par\u00e1metros agrupados (LPC) de bal\u00edstica interior (IB) que incorpora un nuevo enfoque de procesamiento de im\u00e1genes para calcular la regresi\u00f3n de los granos de propulsante. El c\u00f3digo CFD CEDRE de ONERA, mejorado con la t\u00e9cnica de malla din\u00e1mica (DMT), est\u00e1 integrado con el LPC para simular la IB con precisi\u00f3n. Las pruebas de validaci\u00f3n se alinean bien con la literatura existente. Adem\u00e1s, CEDRE se utiliza para modelar la bal\u00edstica intermedia, incluido el vuelo libre del proyectil, con m\u00e9todos reactivos y multiespecies. En un enfoque, un problema inverso resuelve las configuraciones \u00f3ptimas del propulsante del arma para cumplir con los requisitos espec\u00edficos de velocidad inicial y presi\u00f3n. La metodolog\u00eda tambi\u00e9n explora la din\u00e1mica de la llama y la despresurizaci\u00f3n en un canal de Base Bleed (culote hueco) (BB) en la boca del ca\u00f1\u00f3n, con variaciones de presi\u00f3n que coinciden con los estudios establecidos.<\/p>\n

\n

Abstract<\/strong><\/p>\n

The aim of this paper is to simulate and study the early moments of the reactive ballistics of a large caliber projectile fired from a gun, combining 0D and 2D axisymmetric Computational Fluid Dynamics (CFD) approaches. First, the methodology is introduced with the development of an interior ballistics (IB) lumped parameter code (LPC), integrating an original image processing method for calculating the specific regression of propellant grains that compose the gun propellant. The ONERA CFD code CEDRE, equipped with a Dynamic Mesh Technique (DMT), is then used in conjunction with the developed LPC to build a dedicated methodology to calculate IB. First results obtained on the AGARD gun and 40 mm gun test cases are in a good agreement with the existing literature. CEDRE is also used to calculate intermediate ballistics (first milliseconds of free flight of the projectile) with a multispecies and reactive approach either starting from the gun muzzle plane or directly following IB. In the latter case, an inverse problem involving a Latin hypercube sampling method is used to find a gun propellant configuration that allows the projectile to reach a given exit velocity and base pressure when IB ends. The methodology developed in this work makes it possible to study the flame front of the intermediate flash and depressurization that occurs in a base bleed (BB) channel at the gun muzzle. Average pressure variations in the BB channel during depressurization are in good agreement with literature.<\/p>\n

\"Descargar<\/a>Fuente:<\/strong> https:\/\/www.sciencedirect.com<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

El art\u00edculo de la referencia investiga las primeras fases de la bal\u00edstica reactiva para proyectiles de gran calibre disparados desde un arma, utilizando una combinaci\u00f3n… <\/p>\n","protected":false},"author":1,"featured_media":16638,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[18,24],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/16637"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16637"}],"version-history":[{"count":1,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/16637\/revisions"}],"predecessor-version":[{"id":16640,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/16637\/revisions\/16640"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/media\/16638"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}