This work presents a simplified methodology to couple the physics of a nanosecond pulsed discharge to the process of supersonic combustion in a flat wall combustor configuration. Plasma and supersonic combustion are separately simulated and then coupled by seeding plasma-generated radicals on the combustion domain. The plasma model is built assuming spatial uniformity and considering only the kinetic effects of the nanosecond pulsed discharge. Therefore, a zero-dimensional kinetic scheme accounting for the generation of plasma species is utilized. For the combustion model, the complete set of Favre-averaged compressible Navier Stokes equations along with finite rate chemistry is solved through a control-volume based technique via the commercial software Ansys Fluent. The computational results are compared against experimental studies showing that the proposed methodology can capture the main kinetic effects of the nanosecond pulsed discharge on supersonic combustion. OH concentration contours reveal the presence of an enhanced flame when the plasma is applied following the trends from experimental OH PLIF images. In addition, time evolving temperature and OH concentration contours show that the ignition delay time is reduced with the application of the discharge.
Contrary to what could be expected given the United States' historical hegemony of Latin America, growing Chinese influence in this region has not led to a dispute between China and the US. Despite activism of hard-line groups in the United States, both parties have faced the issue with noticeable pragmatism. This attitude could be explained by three variables: the US political negligence towards Latin America in the Post-Cold War, the focus of Sino-Latin American relations on economic rather than geopolitical or ideological affairs, and the scanty relevance of the region in the top priorities of overall Washington-Beijing relations.
Consideramos que las juventudes étnicas en las universidades convencionales, en los territorios migratorios actuales y en el despliegue del ejercicio de su profesión, son los espacios de incidencia donde se articulan un conjunto de condiciones sociales que configuran experiencias étnicas juveniles particulares. Proponemos una mirada etnográfica sobre las juventudes étnicas universitarias en el Área Metropolitana de Monterrey (AMM), para enfatizar el posicionamiento de algunos agentes étnicos juveniles a partir de ciertos procesos organizativos, su protagonismo y las propuestas que extienden en espacios sociales a fin de instalar y potenciar las relaciones interétnicas e interculturales.
El área metropolitana de Monterrey (AMM) presenta un fenómeno social relevante en el contexto de los escenarios actuales de la migración indígena en México y de los estudios sobre juventud, si consideramos que constituyen un importante porcentaje del total de población indígena migrante en el AMM. Por lo tanto, el interés de este artículo es mostrar la manera en que se articulan las condiciones sociales que contextualizan a la juventud mixteca con los programas de atención focalizados a fin de conocer las condiciones juveniles contemporáneas y aportar referentes etnográficos que contribuyan en la generación de líneas de acción que orienten políticas públicas pertinentes considerando la heterogeneidad de los grupos indígenas juveniles en dicha metrópoli.
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