Question

Give two examples of hexagonal cells?​

Answer 1

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Answer:

4.6.2 On the onset of convection in a hexagonal cylinder

One hexagonal cell is composed of three roll systems with the same wavelength being mutually rotated by an angle of 2π/3. We now consider the onset of convection in a cylinder with hexagonal cross-section and impermeable boundaries, with conducting top and bottom and insulating vertical walls. The only hexagonal cell pattern that can fit into this hexagonal container is the single hexagonal cell filling the whole container.

We know that this single hexagonal cell must be the preferred mode of disturbance when the wavelength of  hexagon