it keeps everything moving in the direction it should go. Mucus also tends to be the lubricant for our lungs and organs. So there are plenty of time for our body to catch any allergens, or other dusty blockages. Fortunately for us, the mucus in our nose also lines our esophagus, lungs, and intestines. So overall our nose has a hard time catching all the dirt. Depending where we work, it varies on how much dust we breath in. In a regular day we breath 2,000 gallons of air. Nose mucus also helps capture any dust we may breath in. They may also appear more flaky, and stick to the inside of the nose more. These chunks of mucus will be thicker and more viscous than other types of mucus. Snot can also contain dead skin cells from the inside of your nose as well as blood cells from nose bleeds. It is creating condensation, and the only way for the condensation to escape is to go down. This is because your nose is reacting similarly to a cold coke can being pulled from the fridge. For example, if you come inside after a cold day, you may have to blow your nose. Depending on our feelings, time of day, sense of unwell, or weather, the fluids in our nose react differently. We call these fluids snot, boogers, and sometimes mucus. One cool thing about the nose is that it has a whole range of fluids that condense out of it. If the blood is emitting from an artery it will be darker. But depending on where the blood is emitting from, and the lighting you may want to range the color for human blood between a moderate red, to a deep one. Keep your particle separation and scale low.įor a blood material, blood is less shiny than you may think. When in doubt, a good particle fluid simulation will almost always work for blood. And since blood fails to clot around punctured organs or fast moving areas, it does not stop. It will also fly farther away from the body as it is carrying more velocity. Because arteries have a pulse, blood will burst out of the body where the rupture is, and in time with your heartbeat. When you puncture a vein comparative to an artery, you will bleed differently. Veins take old blood back to the heart to be replenished with oxygen. They usually carry their own pulse, and this is why people sometimes measure their pulse on the sides of their necks, or wrists. Arteries pump blood upwards and out of your heart. You don't want the blood to appear like water, rather you want it to appear as if it is between a melted jello like substance, and an orange juice level of runniness depending on your scene.Īround our bodies there is something called arteries. This is something most artists forget when creating their simulation. The slower the blood is, the higher it will be. This is the study of blood flow, as well as the overall study of the way blood cells and plasma move through the body.Ī general rule of thumb is that the faster moving the blood flow is, the lower the viscosity. The best way to describe the viscosity of blood is by the study of Hematology. The general viscosity of blood is normally 3 × 10−3 to 4 × 10−3 per centimeter per gram, per second. (Keep this in mind for later.)īlood is a bit thicker than other fluids. Minus the internal organs as the blood flow is too rampant there for it to stick. Blood is also designed to clot around any bleeding area of the body. The red ones carry oxygen to different parts of the body, and the white ones are designed to catch infected cells, and prevent viruses from spreading. The blood is made up of red and white blood cells, as well as plasma. This is the substance that keep us moving, and our limbs alive and healthy. This fluid is well understood across the board. Heads up, this article may also get a bit graphic as I'll be describing how these fluids work, so be prepared if you don't like squeamish stuff. This article is going to cover how to simulate some of the fluids inside our bodies, and maybe a few weirder organs. In the end it got me thinking about simulating the human body, and all the fluids it contains. Which is a great read if you'd like to learn about the history of medicine, and the overall understanding of the human body. So working between shots in the studio, I started to read The Body by Bill Bryson.
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