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Airflow Measurement to Validate CFD Analysis

Airflow Measurement to Validate CFD Analysis

Help Prevent the Spread of COVID-19

The Coronavirus (COVID-19) pandemic is affecting all of us. As the world works toward reopening, simulation is one of the strategies being used to understand ventilation systems and how aerosols and droplets propagate. This allows managers of indoor (and outdoor) spaces such as offices, manufacturing facilities, restaurants, and lecture halls to better prepare and prevent the transmission of COVID-19. 

CFD Modeling Validation

Validation of CFD modeling with air velocity, temperature and humidity sensors from Degree Controls ensures prediction quality. HVAC and ventilation systems can vary widely, and airflow sensor placement strategy varies by application. Degree Controls offers a variety of airflow tools which are used by our clients to collect quantitative information. Examples include:

  • °C SPAR (Sensor Pole Array) is a device with multiple air velocity sensors along its length. By mounting the °C SPAR to a telescoping base, a user can take readings at different heights and create an X-Y planar airflow analysis in a room. This technique is also useful for evaluating thermal stratification and the effectiveness of mixing air to achieve temperature equalization in your space.
  • °C Grid is a pre-built, X-Y sensor array contained in a frame, used to study the planar airflow profile in room areas, ducting, HEPA filtration units, and airflow dampers. °C Grids are built with up to 200 sensors, each measuring air velocity and air temperature simultaneously. Experiments using a °C Grid at multiple locations can resolve 3D airflow plumes.
  • Our UAS1000 series of individual airflow, temperature and humidity sensors are connected together with our °C Port data acquisition instrument and AccuTrac™ datalogging software, which enables the user to position the sensors to create custom, multi-point sensing arrays. As the highest standard for multi-point airflow sensing, the UAS1000 product line is used around the globe for determining airflow patterns and velocity and temperature distributions.

We Support Science During COVID-19, and Always

Clients are using air velocity, temperature and humidity sensing to verify that their computational simulations agree with physical reality, as well as to gain insight on the effects of inducement and entrainment, in real time. DegreeC continues to support them with our 25+ years of airflow expertise. In addition to our USB-based airflow sensors, we offer analog/digital probe style sensors and °C SPARs with analog output.

VIDEO: Airflow Sensors

Airflow Products for CFD Analysis

Multipoint sensor for CFD analysis


Fully-configurable °C SPAR Sensor Pole Array system for linear air velocity, humidity & temperature measurement. System is custom built to meet user-defined specifications including pole dimensions, calibration ranges, and sensor quantities.

CFD analysis with CGrid multipoint airflow sensor


°C Grid is a comprehensive, multi-scalar solution versatile enough for any application where airflow and thermal conditions must be measured, mapped or managed. With our °C Grid Sensor Array, airflow, ambient temperatures, and humidity can be measured and recorded at multiple points in real-time.

CFD Analysis Validation with UAS 1000 Airflow Sensor

UAS 1000

With the DegreeC portfolio of sanitary, FDA-GRAS fog generators and accessories, certifiers, pharmacy managers, engineers, and HVAC technicians can detect leaks, test HEPA filters, and monitor turbulence in ventilation systems with greater safety and precision than toxic alternatives such as smoke sticks.

DegreeC manufactures both instrumentation-class airflow sensors and sensors embedded in some of the world's most demanding products. These airflow monitoring solutions are for electronics, laboratory, building, and industrial safety applications to bring air precisely where it's needed. We also develop custom fan and heater controllers for OEM applications.

Consult with an Airflow Sensor Specialist

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Jan Fischer  
Having joined DegreeC in 2009, Jan has over a decade of experience consulting professionals in a wide range of industries on methods for using airflow sensors and instrumentation to collect data for testing and analysis.