Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"Escoamento bifásico"”.
-
Caracterização experimental do escoamento bifásico horizontal de fluidos reofluidificantes
Investigate the local and global properties of a horizontal gas-liquid slug flow, in three different shear-thinning fluids. To do so, an experimental testing bench was assembled and validated using an air-water slug flow. Three different working fluids where prepared to be used in the testing …
-
Abordagem algébrico-diferencial na simulação unidimensional do escoamento bifásico em dutos
Simultaneous flows of liquid and vapor phases through pipes, ducts and channels are frequently encountered in industrial applications, as is the case of petroleum production and refining, transportation of natural gas and nuclear power reactors. Simulation and design of such process facilities …
-
Transferência de calor no escoamento bifásico de dois componentes, regime anular, tubo vertical
An analytic model for determination of the heat transfer coeficient during the two phase upflow (water + air) in vertical tubes was developped. The design and construction of the equipment is then discussed. The experiments were carried out in one tube, 6mm int and 1500mm of length, which suffered …
-
Estudo e implementação computacional do Método Assintótico tipo Maslov aplicado à propagação de choques para a Equação de Buckley-Leverett
… fenômenos físicos da natureza, dentre eles o escoamento bifásico de fluidos. Para a modelagem deste fenômeno utiliza-se a equação de Buckley-Leverett (uma das possíveis equações) que, devido ao seu comportamento hiperbólico (quando as forças de capilaridade são negligenciadas), possui soluções …
-
Influência da dissipação viscosa na transferência de calor em tubos concêntricos no escoamento turbulento
The temperature profile for a turbulent flow, of a newtonian fluid flowing between two concentric tubes has been determined. The velocity profile was based on the Deissler and Quarmby equations for turbulent flows. The momentum difusivity equation for the turbulent flow has been evaluated according …
-
Estudo de modelos de dois fluidos acoplados ao método FCT em escoamentos bifásicos
Numerical simulation of two-phase flows is a tool of great importance to various areas of industry, especially in the oil and gas industry, in predicting the behavior of the flows according to the main parameters of the problem. This work aims to study two different two-phase flow models, named …
-
Caracterização experimental da separação gás-líquido em uma junção do tipo T inclinada
The two-phase flows at a T-Junction is a common feature in many industrial processes, such as oil field flow lines, pipeline networks and refinery streams to divide or combine flows. When a gas-liquid mixture flows through a junction, the phases can be separated unevenly such that the qualities in …