1.961 - Lecture 24 – Finding each other in the turbulent ocean
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Does turbulence help you encounter your prey or your mate? <br />External fertilization: encounter of...
View Article1.961 - Lecture 23 – Encounter models
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Encounter rate kernels<br /> Perception distance</p>
View Article1.961 - Lecture 22 – Particle capture
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>How do you capture prey at low Reynolds number ?</p><p>1) Hope it diffuses to you: Brownian...
View Article1.961 - Lecture 21 – Nutrient flux to osmotrophic organisms
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>The Sherwood number<br /> Increasing the nutrient flux: an exercise in thinning your boundary...
View Article1.961 - Lecture 20 – Diffusion to capture
<p><b>1.961 Life at low Reynolds numbers</b></p><p>Probability to capture and mean time to capture<br /> Adrift at sea: mixing plankton</p>
View Article1.961 - Lecture 19 - Flagellar propulsion
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Resistive force theory: exploiting the anisotropy of drag<br /> Optimum shape of flagella in 2D and...
View Article1.961 - Lecture 18 – Swimming at low Reynolds number
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Why and how to swim ?<br /> Eukaryotic flagella<br /> Prokaryotic flagella<br /> Little...
View Article1.961 - Lecture 17 – Hydrodynamic signals in the plankton
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p> The fundamental solution to Stokes' equation: the Stokeslet<br /> Other important solutions:...
View Article1.961 - Lecture 16 – Reorientation of organisms in a flow
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Organisms exposed to shear<br /> Jeffery orbits </p>
View Article1.961 - Lecture 15 – Drag and terminal velocity
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p> Stokes' settling speed<br /> Terminal velocity: on non-splashing mice<br /> Sinking and...
View Article1.961 - Lecture 14 – Stokes flow around a sphere
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Deriving the solution for the flow field <br />The drag force on the sphere<br /> Stokes' and...
View Article1.961 - Lecture 13 – The perils of reversibility
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Particles crossing streamlines?<br /> Solving hard problems without doing math<br /> The scallop...
View Article1.961 - Lecture 12 – Properties of Stokes flow
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Strouhal and Knudsen numbers <br /> A world with no inertia<br /> The instantaneous diffusion of...
View Article1.961 - Lecture 11 – Low Reynolds number fluid dynamics (Stokes flow)
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>When inertia doesn't matter: low Reynolds number<br /> Counterintuitive fluid mechanics (GI Taylor's...
View Article1.961 - Lecture 10 – Chemotaxis
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Many taxis: chemo-, photo-, pH-, magneto-, rheo-, geo-, aero-, thermo-, gyro-taxis. <br /> A computer...
View Article1.961 - Lecture 9 – Poisson processes and bacterial diffusion
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Tumbling intervals: a Poisson process<br />Diffusion of a bacterial population<br />Motility...
View Article1.961 - Lecture 8 – What’s diffusion got to do with...
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Brownian rotational diffusion<br /> A bacterial random walk: E. coli's run-and-tumble swimming<br...
View Article1.961 - Lecture 7 – Taylor dispersion
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>Poiseuille flow<br /> The advection-diffusion equation<br /> Stretching the mixing zone:...
View Article1.961 - Lecture 6 – Receptors
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p> Receptors on cell surfaces: how many do you need?<br /> Other forms of diffusion<br /> Diffusion...
View Article1.961 - Lecture 5 – Examples and applications of diffusion
<p><strong>1.961 Life at low Reynolds numbers</strong></p><p>The capillary assay: testing what microorganisms like<br /> Diffusion in a pipe<br /> Insect...
View Article
More Pages to Explore .....