Roll Waves
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. Modelo matemático simplificado para determinar a capacidade erosiva de um escoamento lamoso em regime laminar pulsante
RESUMO Neste artigo foi proposto um modelo matemático simplificado para inferir sobre a capacidade erosiva de um escoamento lamoso em regime laminar com presença de roll waves (efeito pulsante) na superfície livre. Na perspectiva de aplicação de resultados no contexto de desastres naturais (corridas de lama), foi determinada a evolução da velocidade m
Eng. Sanit. Ambient.. Publicado em: 22/10/2018
-
2. Numerical investigation of the three-dimensional secondary instabilities in the time-developing compressible mixing layer
Mixing layers are present in very different types of physical situations such as atmospheric flows, aerodynamics and combustion. It is, therefore, a well researched subject, but there are aspects that require further studies. Here the instability of two-and three-dimensional perturbations in the compressible mixing layer was investigated by numerical simulat
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-06
-
3. Supressão do ruído de rolamento superficial utilizando a transformada Curvelet
Among the many types of noise observed in seismic land acquisition there is one produced by surface waves called Ground Roll that is a particular type of Rayleigh wave which characteristics are high amplitude, low frequency and low velocity (generating a cone with high dip). Ground roll contaminates the relevant signals and can mask the relevant information,
Publicado em: 2009
-
4. SUPRESSION GROUND ROLL BY EMPLOYING WAVALET / SUPRESSÃO DE RUÍDO DE ROLAMENTO SUPERFICIAL UTILIZANDO WAVELETS
Surface waves are a common source of unwanted noise in the seismic record. Ground roll can be defined as a group of events that contaminates seismic data and makes a high dip (low velocity) and high amplitude cone, this can dominate near-source on seismic records. Surface waves are such a problem in land seismic record acquisition that the design of acquisit
Publicado em: 1999