Peristaltic Flow of a Nanofluid under the Effect of Hall Current and Porous Medium

Figure 4

Variations of pressure rise Δ𝑃 versus flow rate 𝑄 for different values of Hall parameter 𝑚 (panel a), local temperature Grashof number 𝐺_𝑟 (panel b), porosity parameter 𝑠 (panel c), and the Brownian motion parameter 𝑁_𝑏 (panel d). The other parameters chosen are 𝑑=1, 𝑦=1, 𝑀=1.2, 𝑎=0.3, 𝑏=0.5, 𝑁_𝑏=0.8, 𝑁_𝑡=0.5, 𝑠=0.5, 𝜙=0.2, 𝐺_𝑟=0.5, and 𝐵_𝑟=0.5 (panel a); 𝑑=1, 𝑦=1, 𝑀=1.2, 𝑎=0.3, 𝑏=0.5, 𝑁_𝑏=0.8, 𝑁_𝑡=0.5, 𝑠=0.5, 𝜙=0.2, 𝑚=1, and 𝐵_𝑟=0.5 (panel b); 𝑑=1, 𝑦=1, 𝑀=1.2, 𝑎=0.3, 𝑏=0.5, 𝑁_𝑏=0.8, 𝑁_𝑡=0.5, 𝑚=1, 𝜙=0.2, 𝐺_𝑟=0.5, and 𝐵_𝑟=0.5 (panel c); and 𝑑=1, 𝑦=1, 𝑀=1.2, 𝑎=0.3, 𝑏=0.5, 𝑚=1, 𝑁_𝑡=0.5, 𝑠=0.5, 𝜙=0.2, 𝐺_𝑟=0.5, and 𝐵_𝑟=0.5 (panel d).

(a)

(b)

(c)

(d)