Currently, emerging technologies such as digital twins, through the application of frontier techniques, have achieved physics-based simulations that reduce time and costs. Hence, its application is of the utmost importance in the industry, mainly in the sugar drying process of sugar mills for an updated version of the process. Sugar mills lack process control, leading to unexpected issues. Sugar mills with poor process control cause operational problems. This article presents significant innovation in the field of industrial process optimisation through the integration of digital twins with the k-ε standard model in computational fluid dynamics (CFD). The primary objective of this publication is to predict the ideal conditions of a centrifugal sugar dryer using CFD through the k-ε standard model to analyse the aerodynamic behaviour of the ambient air by applying heat through heat exchangers to obtain a suitable mass flow. The mathematical model was carried out under an energy balance to the thermodynamic system to study the behaviour through a simulation in MATLAB R2017 and an air-fluid simulation of drying with software CFD 2015. The results proved that the model of the thermal system and frontier conditions, when applying CFD, carried our simulation and remained stable. The ideal operating conditions of the centrifugal sugar dryer can be predicted effectively, with an energy saving of 4.25%.

La atracción migratoria (reciente y acumulada) es una construcción específica de la migración interna, la cual contiene dinámicas socioeconómicas y culturales, entre otras, desde los centros rurales o urbanos, con perspectivas territoriales y regionales. En México, el indicador de la atracción migratoria reciente muestra mejores condiciones y dinámicas de la economía desde hace siete años. Por su parte, Veracruz presenta desde hace una década un importante crecimiento demográfico y de inmigración interna, además de una significativa migración hacia entidades del norte. En este contexto, el objetivo del artículo es construir indicadores de atracción migratoria y reciente a nivel nacional y para el estado de Veracruz, que sirvan como base para futuras investigaciones que profundicen en las causas y factores de la migración interna, y expliquen las dinámicas entre un territorio y otro. The migratory attraction (recent and accumulated) is a specific construction of internal migration, which contains socio - economic and cultural dynamics, among others; from rural or urban centers, with territorial and regional perspectives. In Mexico, the indicator of recent migration attraction shows the best conditions and dynamics of the economy since seven years ago. On the other hand, Veracruz has had an important demographic and internal immigration growth since a decade, as well as an important migration towards northern entities. In this context, the objective of the article is to build indicators of mig ratory and recent attraction at the national level and for the state of Veracruz, which serve as a basis for future research that delves into the causes and factors of internal migration and explain the dynamics between one territory and another.