Essays about: "falling disc"

Found 2 essays containing the words falling disc.

1. 1. The fate of pebbles and planetesimals entering protoplanetary envelopes

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Emil Zadera; [2019]
   Keywords : Planet formation; planet; protoplanet; protoplanetary envelope; protoplanetary atmosphere; protoplanetary growth; planetary growth model; accretion rate; vapour blob; vapourblob; vapour planet; transport of water; water on planet; pebbles; planetesimals; pebble accretion; planetesimal accretion; meteors; ablation; fragmentation; sublimation; protoplanetary disk; MMSN; accretion window; accretion channel; accretion; destruction; disruption; terminal velocity; gas; gasflow; shearingbox; exoplanet; Physics and Astronomy;

   Abstract : Planetary embryos grow by the accretion of solid dust-material, ranging from cm- to m-sized pebbles up to km-sized planetesimals. However, the underlying size-distribution of the accreted material is poorly understood. READ MORE

3. 2. Holonomic versus nonholonomic constraints

   University essay from Avdelningen för fysik och elektroteknik

   Author : Mattias Flygare; [2012]
   Keywords : analytical mechanics; classical mechanics; lagrangian; d alembert s principle; hamilton s principle; holonomic; nonholonomic; constraints; differential geometry; fibre bundle; curvature; falling disc;

   Abstract : Courses in analytical mechanics for undergraduate students are often limited to treatment of holonomic constraints, which are constraints on coordinates. The concept of nonholonomic constraints, constraints on velocities, is usually only mentioned briefly and it is easy to get a wrongful idea of what they are and how to treat them. READ MORE