Simulation Electrically Heated Nozzle
If you want to perform a simulation of an electrically heated nozzle, the CFD software NOGRID points offers the ideal solution. It delivers detailed insights into both the thermal behavior and fluid dynamics of electrically heated nozzles. By simulating the electrical heating process, engineers can optimize temperature distribution and improve product quality.
There are numerous industrial applications involving electrically heated nozzles, feeders or channels. In this case study, a metal-shelled nozzle is simulated. The metal shell is electrically heated, which in turn heats the liquid flowing through the nozzle. Due to the electrical resistance of the metal - and its dependence on the thickness distribution - the metal is heated to different degrees. The temperature distribution can thus be manipulated in a well defined manner by the thickness distribution of the casing.
Because multiple materials are simulated simultaneously and interact at their interfaces, this setup qualifies as a multiphase simulation.
Based on a geometric model - either imported from your CAD system or created using our CAD preprocessor COMPASS - you can quickly generate a computer model of a specific geometry. Compared to traditional mesh-based methods, the setup time is significantly shorter, allowing you to analyze the thermal characteristics in advance.
To solve the electrical potential u in liquids and solids, NOGRID points uses the following equation:
u electrical potential u = u (x, y, z)
σ electrical heat conductivity
q source term
In the field of electrostatics, the electrical potential does not change with time and the valid differential equation for the electric potential u is the Poisson equation
Conduction in solids and liquids is described by Ohm's law, which states that current is proportional to the applied electric field. The current density (current per unit area) j in an area is directly proportional to the electric field E and the proportionality factor is the electric conductivity σ:
The electric field E can be calculated directly from the electric potential u by
In this study, the metal is treated as a solid, meaning only the temperature equation and the Poisson equation for the electrical potential are computed. The fluid flowing through the nozzle is in direct contact with the solid, allowing heat exchange between the two. As a result, the temperature in the fluid is influenced by the temperature of the solid - and vice versa.
For example, if the fluid's viscosity is temperature-dependent, the thermal state of the solid directly affects the flow behavior inside the nozzle.
Heat transfer can occur via conduction, radiation, or convection through fluid movement - and all these mechanisms can be coupled within the simulation. In this particular example, ideal thermal contact between the nozzle and the fluid is assumed.
Benefits of simulation with NOGRID points CFD software
NOGRID points provides in-depth insight into flow behavior by visualizing mass, momentum, and heat transfer in both single-phase and multiphase systems. You receive integral quantities that can be used to analyze the heat exchange efficiency.
Additionally, NOGRID combines advanced cabilities to handle free surface flows and moving parts within the domain. It supports the simulation of any conceivable geometry and operating mode, including:
- computation is in full 3D solving complete Navier-Stokes-Equations
- easy and intuitive setup also for FSI (Fluid-Structure-Interaction) cases
- free definable material properties by equations or curves,
- coupled solutions for electrical heating and fluid mechanic cases
- open or closed domains including inflow and outflow areas (non-batch mode)
- moving of parts and flexible thermal contact behaviour
Nogrid's strengths
Easy and fast modelling: Build geometry, mesh boundary, setup the case and start computation
What is CFD from NOGRID?
CFD solves the fundamental equations that define the fluid flow process. With CFD software from NOGRID every engineer makes better decisions by predicting, analyzing and controlling fluid flow, heat and mass transfer or chemical reaction. By using NOGRID software for flow modeling you receive information on essential flow characteristics as for example flow distribution. Using it additional to testing and experimentation NOGRID software helps to improve the evaluation of your design – resulting in better construction and operation parameters, increasing planning security and money savings due to faster time to the marketplace for your product or process.
Choose NOGRID
With NOGRID, you choose professional CFD software and services – our aim is helping you to be successful. When you decide to work with NOGRID you choose close cooperation with a dynamic, flat hierarchies-organization. Short information channels result in quick and accurate professional support and service. Our team consists of highly qualified employees, who are experts in fields such as numerical simulation or computational fluid dynamics. Based on our know-how, we are pleased to offer the following services, responding to your individual requirements:
TRAINING
In our two-days training courses you will learn, how to use NOGRID CFD software efficiently. Our technical support team will teach you how to handle and solve different cases.
For more details please refer to Training Courses →
Technical Support
We offer full professional support from the minute you start using our software, by telephone or by email. Contact us, when ever needed.
For more details please refer to Software Support →
Service
Lack of time or resources and other constraints often make outsourcing an attractive solution. We help you with your flow modeling needs. Based on our engineering expertise in this field we offer individual numerical simulation services matching the unique needs of your organization.
For more details please refer to Simulation Services →