Browsing by Author "de Lozar, Alberto"
Now showing items 1-6 of 6
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Cloud droplets in a bulk formulation and its application for the buoyancy reversal instability
de Lozar, Alberto; Mellado González, Juan Pedro (2014-07-28)
Article
Open AccessMixing processes at the boundary of clouds often include typical length-scales of several metres. Such length-scales are too large for current Lagrangian models but they are also poorly resolved by typical Eulerian-based ... -
Direct Numerical Simulations of a smoke cloud-top mixing layer as a model for stratocumuli
de Lozar, Alberto; Mellado González, Juan Pedro (2013-08-05)
Article
Open AccessA radiatively driven cloud-top mixing layer is investigated using direct numerical simulations. This configuration mimics the mixing process across the inversion that bounds the stratocumulus-topped boundary layer. The ... -
Evaporative cooling amplification of the entrainment velocity in radiatively driven stratocumulus
de Lozar, Alberto; Mellado González, Juan Pedro (2015-09-15)
Article
Open AccessEvaporative cooling monotonically increases as the thermodynamical properties of the inversion allow for more evaporation in shear-free radiatively driven stratocumulus. However, the entrainment velocity can deviate from ... -
Mixing driven by radiative and evaporative cooling at the stratocumulus top
de Lozar, Alberto; Mellado González, Juan Pedro (2015-12-01)
Article
Open AccessThe stratocumulus-top mixing process is investigated using direct numerical simulations of a shear-free cloud-top mixing layer driven by evaporative and radiative cooling. An extension of previous linear formulations ... -
Reduction of the entrainment velocity by sedimentation in stratocumulus
de Lozar, Alberto; Mellado González, Juan Pedro (2017-03-01)
Article
Open AccessThe effect of sedimentation on stratocumulus entrainment is investigated using direct numerical simulations of a cloud-top mixing layer driven by radiative and evaporative cooling. The simulations focus on the meter and ... -
Scaling Laws for the Heterogeneously Heated Free Convective Boundary Layer
van Heerwaarden, Chiel; Mellado González, Juan Pedro; de Lozar, Alberto (2014-11-01)
Article
Open AccessThe heterogeneously heated free convective boundary layer (CBL) is investigated by means of dimensional analysis and results from large-eddy simulations (LES) and direct numerical simulations (DNS). The investigated ...